CVE-2026-56208

CVE-2026-56208 affects libaom, the reference AV1 codec. A flaw in the encoder’s Look-Ahead Processing (LAP) mode bypasses the first-pass stats ring-buffer guard when g_lag_in_frames is 1 or more, causing a 232-byte out-of-bounds write on every frame after the second. This can corrupt heap objects...

CVE-2026-56208 Libaom: libaom: heap buffer overflow in av1 encoder first-pass stats buffer via lap mode

A heap buffer overflow vulnerability was found in libaom, the reference AV1 codec implementation. A flaw in the AV1 encoder's Look-Ahead Processing LAP mode causes the first-pass stats ring buffer wrap-around guard to be bypassed when glaginframes is set to 1 or higher. This results in a 232-byte...